DeAngeo Hall

10. Knowshon MorenoIs it too early to call him a bust? In two games before getting hurt Moreno averaged just 2.8 yards per carry. His performance was so disappointing that the Broncos traded for Laurence Maroney (not too early to call him a bust). Moreno is expected to return to action this week.

9. DeAngelo HallAccording to Pro Football Focus, Hall has been targeted 24 times and has allowed 23 completions. Wow. Just by pure luck you’d think two or three of those passes would be dropped or slightly off target and fall incomplete. And he isn’t just being targeted on short easy routes – he’s allowed over 10 yards per completion.

8. Cadillac WilliamsWhen are the Bucs finally going to give up on Williams? He’s averaging just 2.5 yards per attempt, easily the lowest among starting running backs. He’s been so bad that undrafted free agent LeGarrette Blount, who was cut by the Titans, is now splitting carries with Williams.

7.Ndamukong SuhSuh was supposed to be an instant impact player. Many said he was one of the best defensive prospects to enter the draft in years. Sure, he’s been credited with three sacks, but is that really a good way to measure interior lineman? He has been exposed as a liability against the run and opponents are taking advantage of the hole he creates in the middle of their defensive line. The Lions are giving up 4.8 yards per attempt – 4th highest average in the league.

6. Brian Robiskie/Mohamed MassaquoiMaybe Brady Quinn and Derek Anderson weren’t the problem in Cleveland last year. The Browns simply don’t have a receiver who can make a play. The two 2009 2nd-round picks have failed to show any improvements in their second season. According to Pro Football Focus they rank 97th and 96th in percent of targeted passes caught – out of 97 qualifying receivers.

5. Michael CrabtreeAfter a strong end to his rookie season, Crabtree was a major reason why the 49ers were picked by many to win the NFC West. Yes, Alex Smith hasn’t helped his cause but Crabtree hasn’t helped Smith’s either. He’s caught just 11 of 21 passes thrown his direction. A true No. 1 receiver makes plays even on poorly thrown balls.

4. Michael TurnerHere’s a scary thought: the Falcons are 3-1 with almost no help from Burner Turner. He’s averaging just 3.8 yards per attempt this year. His career low entering this season was 4.5. He just hasn’t looked like the big bruising back that terrorized the AFC South the past two seasons. But he’s 28 and has never shied away from contact, perhaps he’s simply nearing the end of the road.

3. Jared AllenWhere has the Vikings sack master been hiding this season? He has been credited with just one sack and has generally been a non-factor all season. His struggles have had a ripple effect throughout the Vikings defense. If he isn’t getting to the quarterback, the rest of the unit suffers.

It's been an ugly start to the season for Favre and the Vikings

2. Chris JohnsonSo much for all that talk about breaking Dickerson’s rushing record. Johnson is averaging just 3.8 yards per attempt this season – nearly two full yards less than last season. Maybe teams have figured out how to stop him. Or maybe he’s just worn out from his league-leading 358 carries last year.

1. Brett FavreMaybe Favre should have hung up the cleats for good this time. He’s already thrown six interceptions, just one fewer than all of last season. He’s averaging just 6.2 yards per attempt, which would be a career low. And he’s completing just 61 percent of his passes – down seven percentage points from last season. Any way you slice it, Favre has been this year’s biggest underachiever.